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当前位置: 首页 > 文章 > 磷与富啡酸配施对潮土中磷锌有效性及锌形态转化的影响 土壤通报 2012 (5) 1207-1214
Position: Home > Articles > Effect of Phosphorus and Fulvic Acid (FA) Combined Application on P & Zn Availability and Zn Transformation in Calcareous Chao Soil Chinese Journal of Soil Science 2012 (5) 1207-1214

磷与富啡酸配施对潮土中磷锌有效性及锌形态转化的影响

作  者：
田春丽;刘芳;介晓磊;刘世亮;化党领
单  位：
河南农业职业学院;黄淮学院;河南农业大学资源与环境学院河南省高校农业资源与环境工程技术研究中心
关键词：
潮土;富啡酸;速效磷;有效锌;锌形态
摘  要：
采用室内培养方法,研究了磷与富啡酸(fulvic acid,FA)配施对石灰性潮土中磷锌有效性及锌形态转化的影响。结果表明:潮土中速效磷含量随外加磷量的增加而显著增加,且随着培养时间的延长发生了明显的固定,而且外加磷越高,土壤对其的固定越明显。土壤速效磷含量随添加FA量的增加而增加,即FA提高了磷有效性,但在低磷处理下,FA对磷的活化作用很小,而在高磷处理下作用明显;土壤速效磷含量随添加锌量的增加而降低,即高锌降低了速效磷的含量。土壤DTPA-Zn含量随锌添加量的增加显著增加,且随培养时间的延长而显著降低;低量磷可提高DTPA-Zn含量,但当土壤磷添加量太高时(高于120 mg kg-1或160 mg kg-1)则降低DTPA-Zn含量。土壤DTPA-Zn含量随FA添加量的增加而增加,但FA对长时间培养土壤锌的活化作用不明显。对土壤锌分级表明,土壤锌主要以残渣态(RES)形式存在,而交换态和有机质结合态锌在石灰性土壤中含量极低。同时,外源可溶性锌明显提高了土壤中RES-Zn、CAB-Zn、OFe-Mn-Zn和EX-Zn含量,但OM-Zn增加趋势不明显,且随着培养时间的延长,土壤中有效性较高的EX-Zn和OM-Zn逐渐向无效态RES转化,FA对土壤锌形态转化作用不明显。
译  名：
Effect of Phosphorus and Fulvic Acid (FA) Combined Application on P & Zn Availability and Zn Transformation in Calcareous Chao Soil
作  者：
TIAN Chun-li 1,3,LIU Fang 1,JIE Xiao-lei 1,2,LIU Shi-liang 1,HUA Dang-ling 1(1.College of Resources and Environment,Henan Agricultural University/Engineering Research Center of Agricultural Resources and Environment,Colleges and Universities of Henan Province,Zhengzhou 450002,China;2.Huanghuai University,Zhumadian 463000,China;3.Henan Vocational College of Agriculture,Zhongmu 451450,China)
关键词：
Calcareous Soil;Fulvic acid;Avail-P;Avail-Zn;Zinc fractions
摘  要：
The effect of phosphorus and fulvic acid(FA)combined application on P&Znavailability and Zntransform ation in calcareous Chao soil by incubated method.The results showed that,the available P content in Chao soil was significantly increased with P added amount increased,and the P was fixed with incubated time extend,and the phenomenon of fixed was evidence.The available P content was increased with FA added amount increased,it could say that FA improved the availability of P,but the P activate foundation by FA was very feebleness when under the low P content treatment,and the activated foundation was very evident under the more P content treatment.The soil DTPA-Zn content was significantly increased with Zn added amount increased,and the DTPA-Zn content was significantly decreased with incubated time extend.The added P amount was low could increased DTPA-Zn content,but when P added amount was too much(more than 120 mg kg-1 or 160 mg kg-1) P added could decreased DTPA-Zn content.The content of DTPA-Zn was increased with FA added amount increased,but it was decreased with incubation time extended.The forms of Zn in soil was main residue form Zn(RES-Zn),but the exchange form Zn(EX-Zn) and organic bound form Zn(OM-Zn) content was very little.Added dissoluble Zn could increased the content of residual form Zn(RES-Zn),carbonate form Zn(CAB-Zn),Fe-oxide and Mn-oxide bound form Zn(OFe-Mn-Zn) and exchange form Zn(EX-Zn),but the EX-Zn content increased was very little,and also showed that the higher available EX-Zn and OM-Zn could transfer to RES-Zn with incubated time extend.The effect of FA on Zn forms transfer was unconspicuous.

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